protected var applyTransitionEndProperties:Boolean
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
This flag controls whether the effect, when run in a transition,
automatically applies the property values according to the end
state, as opposed to leaving values as set by the effect itself.
The default value is true.
className:String
[read-only]
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
The name of the effect class, such as "Fade"
.
This is a short, or unqualified, class name
that does not include the package name.
If you need the qualified name, use the
getQualifiedClassName()
method
in the flash.utils package.
Implementation public function get className():String
customFilter:mx.effects:EffectTargetFilter
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Specifies a custom filter object, of type EffectTargetFilter,
used by the effect to determine the targets
on which to play the effect.
Target filtering is only performed if you call the
captureStartValues()
method before playing the effect.
Flex automatically calls the captureStartValues()
method
when the effect is part of a transition.
Use the filter
property for simple filtering.
If the customFilter
property is non-null,
the filter
property is ignored.
Implementation public function get customFilter():mx.effects:EffectTargetFilter
public function set customFilter(value:mx.effects:EffectTargetFilter):void
duration:Number
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Duration of the effect in milliseconds.
In a Parallel or Sequence effect, the duration
property sets the duration of each effect.
For example, if a Sequence effect has its duration
property set to 3000, each effect in the Sequence takes 3000 ms
to play.
For a repeated effect, the duration
property
specifies the duration of a single instance of the effect.
Therefore, if an effect has a duration
property
set to 2000, and a repeatCount
property set to 3,
the effect takes a total of 6000 ms (6 seconds) to play.
Implementation public function get duration():Number
public function set duration(value:Number):void
effectTargetHost:mx.effects:IEffectTargetHost
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
A property that lets you access the target list-based control
of a data effect.
This property enables an instance of an effect class to communicate
with the list-based control on which the effect is playing.
Implementation public function get effectTargetHost():mx.effects:IEffectTargetHost
public function set effectTargetHost(value:mx.effects:IEffectTargetHost):void
protected var endValuesCaptured:Boolean = false
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
A flag containing true
if the end values
of an effect have already been determined,
or false
if they should be acquired from the
current properties of the effect targets when the effect runs.
This property is required by data effects because the sequence
of setting up the data effects, such as DefaultListEffect
and DefaultTileListEffect, is more complicated than for
normal effects.
The default value is false.
filter:String
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Specifies an algorithm for filtering targets for an effect.
A value of null
specifies no filtering.
Target filtering is only performed if you call the
captureStartValues()
method before playing the effect.
Flex automatically calls the captureStartValues()
method
when the effect is part of a transition, or part of a data effect
for a list-based control.
Use this property for simple filtering.
Use the customFilter
property for more complex filtering.
If the customFilter
property has a non-null value,
this property is ignored.
You can use the following values for the filter
property:
- A value of
"add"
plays the effect on any targets
that are added as a child to a container. - A value of
"addItem"
plays the effect
on the item renderer for any list items added to a List
or TileList control. - A value of
"hide"
plays the effect on any targets
whose visible property changed from true
to
false
. - A value of
"move"
plays the effect on any targets
that changed their x
or y
properties. - A value of
"remove"
plays the effect on any targets
that are removed as a child of a container. - A value of
"removeItem"
plays the effect
on the item renderer for any list items removed from a List
or TileList control. - A value of
"replacedItem"
plays the effect
on the item renderer for any list items replaced in a List
or TileList control by a new item. - A value of
"replacementItem"
plays the effect
on the item renderer for any list items added to a List
or TileList control that replaces an existing item. - A value of
"resize"
plays the effect
on any targets that changed their width
or height
properties. - A value of
"show"
plays the effect
on any targets whose visible property changed
from false
to true
. - A value of
""
specifies no filtering.
Implementation public function get filter():String
public function set filter(value:String):void
hideFocusRing:Boolean
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Determines whether the effect should hide the focus ring
when starting the effect.
The effect target is responsible for the hiding the focus ring.
Subclasses of the UIComponent class hide the focus ring automatically.
If the effect target is not a subclass of the UIComponent class,
add functionality to it to hide the focus ring.
Set this property to true
to hide the focus ring during the effect.
For subclasses of Effect, the default value is false
.
For subclasses of MaskEffect, the default value is true
.
Implementation public function get hideFocusRing():Boolean
public function set hideFocusRing(value:Boolean):void
public var instanceClass:Class
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
An object of type Class that specifies the effect
instance class class for this effect class.
All subclasses of the Effect class must set this property
in their constructor.
isPlaying:Boolean
[read-only]
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
A read-only flag which is true if any instances of the effect
are currently playing, and false if none are.
Implementation public function get isPlaying():Boolean
perElementOffset:Number
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Additional delay, in milliseconds, for effect targets
after the first target of the effect.
This value is added to the value
of the startDelay
property.
Implementation public function get perElementOffset():Number
public function set perElementOffset(value:Number):void
playheadTime:Number
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Current time position of the effect.
This property has a value between 0 and the total duration,
which includes the Effect's startDelay
,
repeatCount
, and repeatDelay
.
Implementation public function get playheadTime():Number
public function set playheadTime(value:Number):void
relevantProperties:Array
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
An Array of property names to use when performing filtering.
This property is used internally and should not be set by
effect users.
The default value is equal to the Array returned by
the getAffectedProperties()
method.
Implementation public function get relevantProperties():Array
public function set relevantProperties(value:Array):void
relevantStyles:Array
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
An Array of style names to use when performing filtering.
This property is used internally and should not be set by
effect users.
The default value is equal to the Array returned by
the getAffectedProperties()
method.
Implementation public function get relevantStyles():Array
public function set relevantStyles(value:Array):void
public var repeatCount:int = 1
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Number of times to repeat the effect.
Possible values are any integer greater than or equal to 0.
A value of 1 means to play the effect once.
A value of 0 means to play the effect indefinitely
until stopped by a call to the end()
method.
The default value is 1.
public var repeatDelay:int = 0
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Amount of time, in milliseconds, to wait before repeating the effect.
Possible values are any integer greater than or equal to 0.
The default value is 0.
public var startDelay:int = 0
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Amount of time, in milliseconds, to wait before starting the effect.
Possible values are any int greater than or equal to 0.
If the effect is repeated by using the repeatCount
property, the startDelay
is only applied
to the first time the effect is played.
The default value is 0.
public var suspendBackgroundProcessing:Boolean = false
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
If true
, blocks all background processing
while the effect is playing.
Background processing includes measurement, layout, and
processing responses that have arrived from the server.
The default value is false
.
You are encouraged to set this property to
true
in most cases, because it improves
the performance of the application.
However, the property should be set to false
if either of the following is true:
- User input can arrive while the effect is playing,
and the application must respond to the user input
before the effect finishes playing.
- A response can arrive from the server while the effect
is playing, and the application must process the response
while the effect is still playing.
The default value is false.
target:Object
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
The object to which this effect is applied.
When an effect is triggered by an effect trigger,
the target
property is automatically set to be
the object that triggers the effect.
Implementation public function get target():Object
public function set target(value:Object):void
targets:Array
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
An Array of objects that are targets for the effect.
When the effect is playing, it performs the effect on each target
in parallel.
Setting the target
property replaces all objects
in this Array.
When the targets
property is set, the target
property returns the first item in this Array.
Implementation public function get targets():Array
public function set targets(value:Array):void
triggerEvent:Event
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
The Event object passed to this Effect
by the EffectManager when an effect is triggered,
or null
if the effect is not being
played by the EffectManager.
Implementation public function get triggerEvent():Event
public function set triggerEvent(value:Event):void
public function Effect(target:Object = null)
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Constructor.
Starting an effect is usually a three-step process:
- Create an instance of the effect object
with the
new
operator. - Set properties on the effect object,
such as
duration
. - Call the
play()
method
or assign the effect to a trigger.
Parameters | target:Object (default = null ) — The Object to animate with this effect.
|
protected function applyValueToTarget(target:Object, property:String, value:*, props:Object):void
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Used internally by the Effect infrastructure.
If captureStartValues()
has been called,
then when Flex calls the play()
method, it uses this function
to set the targets back to the starting state.
The default behavior is to take the value captured
using the getValueFromTarget()
method
and set it directly on the target's property. For example:
target[property] = value;
Only override this method if you need to apply
the captured values in a different way.
Note that style properties of a target are set
using a different mechanism.
Use the relevantStyles
property to specify
which style properties to capture and apply.
Parameters
| target:Object — The effect target.
|
|
| property:String — The target property.
|
|
| value:* — The value of the property.
|
|
| props:Object — Array of Objects, where each Array element contains a
start and end Object
for the properties that the effect is monitoring.
|
public function captureEndValues():void
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Captures the current values of the relevant properties
on the effect's targets and saves them as end values.
Flex automatically calls the captureEndValues()
method
when the effect is part of a data change effect.
public function captureMoreStartValues(targets:Array):void
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Captures the current values of the relevant properties
of an additional set of targets
Flex uses this function when a data change
effect is run.
Parameters
| targets:Array — Array of targets for which values are captured
|
public function captureStartValues():void
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Captures the current values of the relevant properties
on the effect's targets.
Flex automatically calls the captureStartValues()
method when the effect is part of a transition.
Use this function when you want the effect to figure out the start
and end values of the effect.
The proper usage of this function is to use it
in the following steps:
- Call the
captureStartValues()
method.
The effect captures the starting effect values. - Make changes to your effect targets, such as
adding/removing children, altering properties,
changing location, or changing dimensions.
- Call the
play()
method.
The effect captures the end values.
This function populates the
EffectInstance.propertyChanges
property
for each effect instance created by this effect.
Effect developers can use the propertyChanges
property
to retrieve the start and end values for their effect.
public function createInstance(target:Object = null):IEffectInstance
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Creates a single effect instance and initializes it.
Use this method instead of the play()
method
to manipulate the effect instance properties
before the effect instance plays.
The effect instance is created with the type
specified in the instanceClass
property.
It is then initialized using the initInstance()
method.
If the instance was created by the EffectManager
(when the effect is triggered by an effect trigger),
the effect is further initialized by a call to the
EffectInstance.initEffect()
method.
Calling the createInstance()
method
does not play the effect.
Call the startEffect()
method
on the returned effect instance.
This function is automatically called by the
Effect.play()
method.
Parameters
| target:Object (default = null ) — Object to animate with this effect.
|
Returns public function createInstances(targets:Array = null):Array
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Takes an Array of target objects and invokes the
createInstance()
method on each target.
Parameters
| targets:Array (default = null ) — Array of objects to animate with this effect.
|
Returns | Array — Array of effect instance objects, one per target,
for the effect.
|
public function deleteInstance(instance:IEffectInstance):void
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Removes event listeners from an instance
and removes it from the list of instances.
Parameters
protected function effectEndHandler(event:EffectEvent):void
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Called when an effect instance has finished playing.
If you override this method, ensure that you call the super method.
Parameters
| event:EffectEvent — An event object of type EffectEvent.
|
protected function effectStartHandler(event:EffectEvent):void
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
This method is called when the effect instance starts playing.
If you override this method, ensure that you call the super method.
Parameters
| event:EffectEvent — An event object of type EffectEvent.
|
protected function effectStopHandler(event:EffectEvent):void
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Called when an effect instance has stopped by a call
to the stop()
method.
If you override this method, ensure that you call the super method.
Parameters
| event:EffectEvent — An event object of type EffectEvent.
|
public function end(effectInstance:IEffectInstance = null):void
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Interrupts an effect that is currently playing,
and jumps immediately to the end of the effect.
Calling this method invokes the EffectInstance.end()
method.
The effect instance dispatches an effectEnd
event
when you call this method as part of ending the effect.
If you pass an effect instance as an argument,
just that instance is interrupted.
If no argument is passed in, all effect instances currently
spawned from the effect are interrupted.
Parameters
| effectInstance:IEffectInstance (default = null ) — EffectInstance to terminate.
|
protected function filterInstance(propChanges:Array, target:Object):Boolean
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Determines the logic for filtering out an effect instance.
The CompositeEffect class overrides this method.
Parameters
| propChanges:Array — The properties modified by the effect.
|
|
| target:Object — The effect target.
|
Returns | Boolean — Returns true if the effect instance should play.
|
public function getAffectedProperties():Array
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Returns an Array of Strings, where each String is the name
of a property changed by this effect.
For example, the Move effect returns an Array that contains
"x"
and "y"
.
Every subclass of Effect must implement this method.
The EffectManager uses this method
to ensure that no two effects are trying to animate
the same property of the same object at the same time.
Returns | Array — An Array of Strings specifying the names of the
properties modified by this effect.
|
See also
protected function getValueFromTarget(target:Object, property:String):*
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Called by the captureStartValues()
method to get the value
of a property from the target.
This function should only be called internally
by the effects framework.
The default behavior is to simply return target[property]
.
Effect developers can override this function
if you need a different behavior.
Parameters
| target:Object — The effect target.
|
|
| property:String — The target property.
|
Returns | * — The value of the target property.
|
protected function initInstance(instance:IEffectInstance):void
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Copies properties of the effect to the effect instance.
Flex calls this method from the Effect.createInstance()
method; you do not have to call it yourself.
When you create a custom effect, override this method to
copy properties from the Effect class to the effect instance class.
In your override, call super.initInstance()
.
Parameters
See also
public function pause():void
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Pauses the effect until you call the resume()
method.
public function play(targets:Array = null, playReversedFromEnd:Boolean = false):Array
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Begins playing the effect.
You typically call the end()
method
before you call the play()
method
to ensure that any previous instance of the effect
has ended before you start a new one.
All subclasses must implement this method.
Parameters
| targets:Array (default = null ) — Array of target objects on which to play this effect.
If this parameter is specified, then the effect's targets
property is not used.
|
|
| playReversedFromEnd:Boolean (default = false ) — If true ,
play the effect backwards.
|
Returns | Array — Array of EffectInstance objects, one per target,
for the effect.
|
public function resume():void
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Resumes the effect after it has been paused
by a call to the pause()
method.
public function reverse():void
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Plays the effect in reverse, if the effect is currently playing,
starting from the current position of the effect.
public function stop():void
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Stops the effect, leaving the effect targets in their current state.
Unlike a call to the pause()
method,
you cannot call the resume()
method after calling
the stop()
method.
However, you can call the play()
method to restart the effect.
The effect instance dispatches an effectEnd
event
when you call this method as part of ending the effect.
For mask effects, the mask is not removed automatically
when the effect is stopped.
Running further mask effects on the same target(s)
without first removing the mask can produce unexpected results.
Event Object Type: mx.events.EffectEvent
property EffectEvent.type = mx.events.EffectEvent.EFFECT_END
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Dispatched when one of the effect's instances finishes playing,
either when the instance finishes playing or when the effect
is interrupted by a call to the end()
method.
The
EffectEvent.EFFECT_END
constant defines the value of the
type
property of the event object for an
effectEnd
event.
The properties of the event object have the following values:
Property | Value |
---|
bubbles | false |
cancelable | false |
currentTarget | The Object that defines the
event listener that handles the event. For example, if you use
myButton.addEventListener() to register an event listener,
myButton is the value of the currentTarget . |
effectInstance | The effect instance object
for the event. |
target | The Object that dispatched the event;
it is not always the Object listening for the event.
Use the currentTarget property to always access the
Object listening for the event. |
Event Object Type: mx.events.EffectEvent
property EffectEvent.type = mx.events.EffectEvent.EFFECT_START
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Dispatched when the effect starts playing.
The
EffectEvent.EFFECT_START
constant defines the value of the
type
property of the event object for an
effectStart
event.
The properties of the event object have the following values:
Property | Value |
---|
bubbles | false |
cancelable | false |
currentTarget | The Object that defines the
event listener that handles the event. For example, if you use
myButton.addEventListener() to register an event listener,
myButton is the value of the currentTarget . |
effectInstance | The effect instance object
for the event. |
target | The Object that dispatched the event;
it is not always the Object listening for the event.
Use the currentTarget property to always access the
Object listening for the event. |
Event Object Type: mx.events.EffectEvent
property EffectEvent.type = mx.events.EffectEvent.EFFECT_STOP
Language Version: | ActionScript 3.0 |
Runtime Versions: | Flash Player 9, AIR 1.1 |
Dispatched when the effect has been stopped,
which only occurs when the effect is
interrupted by a call to the stop()
method.
The EFFECT_END event is also dispatched to indicate that
the effect has ended. This extra event is sent first, as an
indicator to listeners that the effect did not reach its
end state.
The
EffectEvent.EFFECT_STOP
constant defines the value of the
type
property of the event object for an
effectStop
event.
The properties of the event object have the following values:
Property | Value |
---|
bubbles | false |
cancelable | false |
currentTarget | The Object that defines the
event listener that handles the event. For example, if you use
myButton.addEventListener() to register an event listener,
myButton is the value of the currentTarget . |
effectInstance | The effect instance object
for the event. |
target | The Object that dispatched the event;
it is not always the Object listening for the event.
Use the currentTarget property to always access the
Object listening for the event. |
<?xml version="1.0"?>
<!-- Simple example to demonstrate the Effect class. -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx">
<fx:Script>
<![CDATA[
import mx.controls.Alert;
// Event handler for the effectEnd event.
private function endEffectHandler():void {
Alert.show("Effect Ended!");
}
// Event handler for the reset button.
private function resetHandler():void {
expand.end();
img.width=30;
img.height=60;
button1.enabled=true;
}
]]>
</fx:Script>
<fx:Declarations>
<mx:Resize id="expand" target="{img}" widthTo="100" heightTo="200"
duration="10000" effectEnd="endEffectHandler();"/>
</fx:Declarations>
<s:Panel title="Resize Effect Example" width="100%" height="100%" >
<s:VGroup left="20" right="20" top="20" bottom="20">
<s:Label width="100%" color="blue"
text="Use the Button controls to control the Resize effect."/>
<mx:Image id="img" width="30" height="60"
source="@Embed(source='assets/Nokia_6630.png')"/>
<s:Button id="button1" label="Start" click="expand.play(); button1.enabled=false;"/>
<s:Button label="Pause" click="expand.pause();"/>
<s:Button label="Resume" click="expand.resume();"/>
<s:Button label="Reverse" click="expand.reverse();"/>
<s:Button label="End" click="expand.end();"/>
<s:Button label="Reset" click="resetHandler();"/>
</s:VGroup>
</s:Panel>
</s:Application>